Interior furnishings (5)
I believe the answer is:
decor
'interior furnishings' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for decor that I've seen before include "Style of furnishing etc used in room" , "Internal ornamentation" , "Interior layout and furnishings" , "Credo (anag.)" , "Interior design; stage scenery" .)